﻿ MATH 141 - PRECALCULUS

MATH 141 - PRECALCULUS

(FALL 2021)

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• NEW PLAYLISTS FOR FALL 2021

DAY 1: T (8/24) and DAY 2: Th (8/26)

DAY 3: T (8/31) and DAY 4: Th (9/2)

DAY 5: T (9/7) and DAY 6: Th (9/9) – SUPPLEMENT TO TEST DAY

QUIZ 1A ON CH.0, HW DUE (DAY 6: Th (9/9)) – READ THESE RULES!

DAY 7: T (9/14) and DAY 8: Th (9/16)

DAY 9: T (9/21) and DAY 10: Th (9/23) – SUPPLEMENT TO TEST DAY

QUIZ 1B ON CH.1, HW DUE (DAY 10: Th (9/23)) – READ THESE RULES!

DAY 11: T (9/28) and DAY 12: Th (9/30)

DAY 13: T (10/5) and DAY 14: Th (10/7)

DAY 15: T (10/12) and DAY 16: Th (10/14) – TEST DAY

MIDTERM 2 ON CHS.2&3, HW DUE (DAY 16: Th (10/14)) – READ THESE RULES!

DAY 17: T (10/19) and DAY 18: Th (10/21)

DAY 19: T (10/26) and DAY 20: Th (10/28)

DAY 21: T (11/2) and DAY 22: Th (11/4) – TEST DAY

MIDTERM 3 ON CH.4, HW DUE (DAY 22: Th (11/4)) – RULES SIMILAR TO MIDTERM 2

DAY 23: T (11/9)

VETERANS DAY: Thurs. (11/11) – NO CLASS!

DAY 24: T (11/16) and DAY 25: Th (11/18)

THANKSGIVING BREAK: Mon. (11/22) - Fri. (11/26)

DAY 26: T (11/30) and DAY 27: Th (12/2) – TEST DAY

MIDTERM 4 ON CHS.5&6, HW DUE (DAY 27: Th (12/2)) – RULES SIMILAR TO MIDTERMS 2 AND 3

DAY 28: T (12/7) and DAY 29: Th (12/9)

DAY 30: T (12/14) and DAY 31: Th (12/16) – TEST DAY

FINAL ON CHS.7-10, HW DUE (DAY 31: Th (12/16)) – IN ONE BIG 250-POINT PART (NOT TWO AS ON THE MIDTERMS), SCIENTIFIC CALCULATOR ALLOWED

• OLD PLAYLISTS FROM SPRING 2021

STUDENT RESOURCES / COVID-19 INFO

• COVID-19 info, Tutoring, Library / LRC, Counseling, Student Health Services, DSPS, Laptops, etc.

• Resource list: tinyurl.com/MesaStudentResourcesCOVID19

• IT Help Desk: (619) 388-7000.

GOING ONLINE!

“See” you in class starting 7:05pm (Tues. and Thurs.) on Zoom! Check my email for the class link. See my syllabus for details.

You can access my YouTube channel here; I plan to play these videos during class time using Zoom - and I can take questions:

Go to Playlists. Sort by “Last video added.”

CANVAS

I don’t do much with Canvas, but a student discussion board and a NetTutor link are there. I will email grade information.

Notes on using the Canvas site: Math 141 Canvas notes

ALEKS Extra Credit

(This review can especially help with the very difficult Chapter 0.)

YOU CAN PAY FOR AN ALEKS LICENSE.

I CAN SEND YOU A CLASS CODE.  Email me

GETTING STARTED:

ALEKS: Getting Started (.pdf)

Orientation Quick Tips (.pdf)

Orientation PowerPoint (.ppt)

IF YOU LIKE ALEKS, BUT YOU FIND THE PACE IN 141 TO BE TOO FAST, TRY THE MATH 15s!

These are great, 1-unit, online, ALEKS-based, self-paced refreshers that have helped many students. 15E is trig; 15F is college algebra. A No-Pass grade does not affect GPA, though it does appear on your transcript; it can be a problem if you are on academic probation. 15E includes 15D (geometry). Instead of enrolling in both 15E and 15F, contact the instructor, and they may be able to make arrangements with you to just enroll in one Precalculus class, though you may be facing material you have not seen yet.

These are offered at different times throughout the semester. You could take more than one in one semester! Get a good foundation for your classes!

Printing Suggestions for Typed Files

I recommend two-page-to-a-side and/or double-sided printing to save paper. Color printing is nice, but B&W printing is cheaper.

Syllabus (Fall 2021): Syllabus

Homework Assignments

#1-A: HW   Answers   (Ch.0 in my notes) (90 points)

#1-B: HW   Answers   (Ch.1) (60 points)

#2: HW   Answers   (Chs.2 and 3) (150 points)

#3: HW   Answers   (Ch.4) (150 points)

#4: HW   Answers   (Chs.5 and 6) (150 points)

#5: HW   Answers   (Chs.7-10) (250 points)

PolarGraphPaper (Ch.10; created using Mathematica with Microsoft Word)

Class Notes

Many students benefit from printing the notes for a lecture beforehand, reviewing them, and commenting on them in class.

You may want to take personalized sketch notes in class.

Creative Commons License: For attribution, simply mention my name and/or web URL somewhere if you are using huge chunks of the notes. I simply want due credit.

NOTES FOR HOMEWORK 1A AND 1B (formerly “quizzes”)

Notes for Quiz 1A and Quiz 1B (last revised 1/27/13)

Chapter 0: Preliminary Topics: (last revised 1/27/13)

NEW!! QUADRATIC FORMULA SONG! (SECTION 0.11):

Chapter 1: Functions

CORRECTION to 1.2.3! In the middle of page 1.2.3, -9 (instead of 9) is not in the domain of f.

MATH DANCES FOR GRAPHING!

http://9gag.com/gag/4419992/do-the-math-dance (correction: x^2 + y^2 = r^2)

(The following notes will be revised for later semesters. Section and page references may be inconsistent with the new Chapters 0 and 1. Please Email me with comments/suggestions.)

NOTES FOR HOMEWORK 2 (formerly “midterm”)

Chapter 2: Polynomial and Rational Functions

Chapter 3: Exponential and Logarithmic Functions

CARD SHARKS AND (NEARLY) EXPONENTIAL GROWTH:

NOTES FOR HOMEWORK 3 (formerly “midterm”)

Chapter 4: Trigonometry

Basic Trig IDs (handout in class): Basic Trig IDs (revised from 5.1 notes: 3/8/18)

VISUALIZING THE SIX BASIC TRIG FUNCTIONS:

http://www.kkuniyuk.com/TrigSixParts.pdf (revised 2/11/06)

NOTES FOR HOMEWORK 4 (formerly “midterm”)

Chapter 5: Analytic Trigonometry

More Trig IDs (handout in class):

Chapter 6: Additional Topics in Trigonometry

KHAN ACADEMY ON EULER FORMULA. (Do you have emotion?)

NOTES FOR HOMEWORK 5 (formerly “final”)

Chapter 7: Systems of Equations and Inequalities

Chapter 8: Matrices and Determinants

Chapter 9: Discrete Math

SECTION 9.4: KHAN ACADEMY ON INDUCTION:

SECTION 9.5: VIDEOS AND PASCAL’S TRIANGLE MAGIC: CLICK ON

Chapter 10: Conics and Polar Coordinates [as time permits] (Ch.10 is mostly handwritten.)

ANIMATION ON CONICS:

Corrections: (0:48-1:07) The double-nappe cone (or simply cone here should not be thought of as finite, so there are no bases nd there is no base perimeter. The term directrix is used elsewhere, especially when describing parabolas.

In previous semesters, the final was cumulative. For your information, here was the outline provided: Math141OldFinalOutline.pdf

THE OLD EXAMS BELOW ARE FOR YOUR REFERENCE.

Old Exams and Solutions (Fall 2019)

Disclaimer: Your exams might look very different from these! Lengths of exam times may be different.

If your printer is broken, you can ask me for printed hard copies in my office hours.

Solutions (1 hour and 15 minutes)

Chapter 0: Preliminary Topics

Solutions (50 minutes)

Chapter 1: Functions

Solutions (50 minutes for Part 1; 1 hour and 20 minutes for Part 2)

Chapter 2: Polynomial and Rational Functions

Chapter 3: Exponential and Logarithmic Functions

Solutions (40 minutes for Part 1; 1 hour and 30 minutes for Part 2)

Chapter 4: Trigonometry

Solutions (40 minutes for Part 1; 1 hour and 30 minutes for Part 2)

Chapter 5: Analytic Trigonometry

Chapter 6: Additional Topics in Trigonometry

Final   Solutions (2 hours and 20 minutes). Material covered in later terms may differ.

Chapter 7: Systems of Equations [and Inequalities]  (Sections 7.5, 7.6 not on Final.)

Chapter 8: Matrices and Determinants  (Sections 8.3, 8.5 not on Final.)

Chapter 9: Discrete Math

Chapter 10: Conics and Polar Coordinates

Current Exams and Solutions (Fall 2021)

Solutions (1 hour and 15 minutes)

Chapter 0: Preliminary Topics

Solutions (50 minutes)

Chapter 1: Functions

Solutions (50 minutes for Part 1; 1 hour and 20 minutes for Part 2)

Chapter 2: Polynomial and Rational Functions

Chapter 3: Exponential and Logarithmic Functions

Solutions (40 minutes for Part 1; 1 hour and 30 minutes for Part 2)

Chapter 4: Trigonometry

Solutions (50 minutes for Part 1; 1 hour and 20 minutes for Part 2)

Chapter 5: Analytic Trigonometry

Chapter 6: Additional Topics in Trigonometry

Final   Solutions (2 hours and 20 minutes). Material covered in later terms may differ.

Chapter 7: Systems of Equations [and Inequalities]  (Sections 7.5, 7.6 not on Final.)

Chapter 8: Matrices and Determinants  (Sections 8.3, 8.5 not on Final.)

Chapter 9: Discrete Math. (Section 9.4 not on Fall 2021 Final.)

Chapter 10: Conics and Polar Coordinates.  (Sections 10.7, 10.8 not on Fall 2021 Final.)

Exams and solutions will be posted about a week after you take them.

Class Resources

TEST-TAKING TIPS; REDUCING TEST ANXIETY:

FREE ONLINE BOOK (OPENSTAX PRECALCULUS):

FREE ONLINE BOOK (PRECALCULUS DEMYSTIFIED):

FREE MATH AND SCIENCE WORKSHOPS!

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